Read About It: Conservation of Mass

What is the law that states matter cannot be created or destroyed during chemical reactions?

• Law of Conservation of Mass

• Law of Chemical Reactions

• Law of Matter Transformation

• Law of Mass Creation

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NGSS.MS-PS1-5

In a chemical equation, the substances on the left side are called ______.

• reactants
• product

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NGSS.MS-PS1-1

Which of the following is a product in the chemical reaction of photosynthesis?

• Glucose

• Carbon Dioxide

• Water

• Sunlight

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NGSS.MS-LS1-6

What happens to the total mass when a chemical reaction takes place according to the law of conservation of mass?

• It remains the same

• It increases

• It decreases

• It fluctuates

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

Identify the types of elements in the following chemical reaction.

• Carbon

• Oxygen

• Hydrogen

• Cobalt

• Helium

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NGSS.MS-PS1-1

How many carbon atoms are in the reactant?

• 2

• 6

• 12

• 4

How many carbon atoms are in the product?

• 2

• 4

• 6

• 12

Tags

NGSS.MS-LS1-6

How many oxygen atoms are in the product?

• 2

• 4

• 8

• 18

Tags

NGSS.MS-PS1-5

How many oxygen atoms are in the reactant?

• 2

• 3

• 12

• 18

Tags

NGSS.MS-PS1-5

How many hydrogen atoms are in the reactant?

• 2

• 6

• 8

• 12

Tags

NGSS.MS-PS1-5